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SEGA NAOMI GD-ROM HARDWARE
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HARDWARE DESCRIPTION
Hardware : Hardware Description

The NAOMI (New Arcade Operation Machine Idea) is also Japanese for beauty above all else.

The GD Rom upgrade is compatible with Naomi and Naomi 2 via the option port on the top of the board. It comes with a Dimm board, very similar to the ROM board on a normal Naomi cartridge, but has RAM instead of ROMS.
RAM board Uses normal PC type DIMM's, so upgrading memory is not a problem, and relativly cheap.

The GD Rom system has a very clever way of getting around the loading delay time. When the game is initially installed, the GD ROM loads its content into the Naomi RAM. Once this is completed, the GD ROM goes into standby unless the RAM gets corupted or the game gets shut off for 72 hours or more. This does two things,

1) Eliminates loading delays completely, (after initial power up.)
2) Minimizes the on/off cycles of the GD ROM drive and greatly increasing the life of this mechanical device.

From Sega R+D - "We learned a lesson watching our coin-op competitors go through hardware hell. Many have been using off-board storage devices for years - hard drives, CD's, etc. with great success in increased content but at a tremendous cost in realiablity. These storage devices simply could not withstand the constant on/off cycling a coin-op application demands. Add to that the dirt and smoke a game has to put up with on location vs. a normal computer application and you can see how this was a problem waiting to happen"

The GD-Rom system uses an electronic "key" that plugs into the DIMM module to act as an activator, to prevent people just copying the GD-Roms, visible on the top right of the pictures. A different key is supplied with every game.

There is a well founded rumor that Sega may use this system for having multigame cabinets like the neogeo multi systems, as the GR-Rom can store a LOT of data....
System Pictures : GD-Rom Closeup - Dimm Module + Key
Flyers : GD-ROM Front - GD-ROM Back

This hardware is based on Sega Dreamcast


KNOWN SEGA NAOMI GD-ROM GAME LIST
Page 1
Alienfront Online
Azumanga Daioh Puzzle Bobble
Border Down
Capcom Vs. SNK 2 : Millionaire Fighting 2001
Capcom Vs. SNK : Millennium Fight 2000 Pro
Chaos Field
Cleopatra Fortune Plus
Confidential Mission
Crackin' DJ 2
Doki Doki Idol Star Seeker

Page 2
Dragon Treasure
Dragon Treasure II
Dragon Treasure III
ExZeus
Get Bass 2 / Sega Bass Fishing 2
Guilty Gear XX #Reload
Guilty Gear XX : The Midnight Carnival
Guilty Gear XX Accent Core
Guilty Gear XX Slash
Ikaruga

Page 3
Jingi Storm - The Arcade
Karous
Kuru Kuru Chameleon
KyoryuKing
La Keyboard XYU
Lupin 3 : The Shooting
Lupin : The Typing
Melty Blood : Act Cadenza Ver. A
Melty Blood : Act Cadenza Version B
Melty Blood : Act Cadenza Version B2

Page 4
Mobile Suit Gundam : Federation Vs. Jion
Mobile Suit Gundam : Federation Vs. Jion Deluxe
Moeru Casinyo
Monkey Ball
Musapey No Choco Marker
Noukone Puzzle Takoron
Pochinya
Project Cerberus
Psyvariar 2
Quiz Keitai Q mode

Page 5
Radirgy
Senko no Ronde
Senko no Ronde New Version
Senko no Ronde SP
Shakka to Tambourine
Shakka to Tambourine 2001
Shakka to Tambourine 2001 Power Up!
Shikigami No Shiro II / The Castle of Shikigami II
Shootout Pool
Shootout Pool Prize

Page 6
Spikers Battle
Sports Jam
Street Fighter Zero 3 Upper
Super Shanghai 2005
Tetris Kiwamemichi
The Maze Of The Kings
Touch De Zunou
Trigger Heart Exelica
Trizeal
Under Defeat

Page 7
Usagui - Yamashiro Mahjong Hen
Virtua Athletics / Virtua Athlete
Virtua Golf / Dynamic Golf
Virtua Tennis / Power Smash
Virtua Tennis 2 / Power Smash 2
World Series Baseball / Super Major League

Pages:   1   2   3   4   5   6   7  

Radirgy
Milestone - 2005
Radirgy Radirgy
 

Senko no Ronde
G.Rev - 2005
Senko no Ronde Senko no Ronde
 

Senko no Ronde New Version
G.Rev - 2005
Senko no Ronde New Version Senko no Ronde New Version
Notes : Not sure what the difference is, I think it may be the control method is slightly different, using optical analog control or something, I cant quite translate the site enough...
 

Senko no Ronde SP
G.Rev - 2006
Senko no Ronde SP Senko no Ronde SP
 

Shakka to Tambourine
2000
Shakka to Tambourine
Shakka to Tambourine Shakka to Tambourine
Sequels : Shakka to Tambourine 2001 (2001) - Shakka to Tambourine 2001 Power Up! (2001)
 

Shakka to Tambourine 2001
2001
No images available
Prequel : Shakka to Tambourine (2000)
Sequel : Shakka to Tambourine 2001 Power Up! (2001)
 

Shakka to Tambourine 2001 Power Up!
2001
Shakka to Tambourine 2001 Power Up!
Shakka to Tambourine 2001 Power Up! Shakka to Tambourine 2001 Power Up!
Cabinets : Deluxe
Prequels : Shakka to Tambourine (2000) - Shakka to Tambourine 2001 (2001)
 

Shikigami No Shiro II / The Castle of Shikigami II
Alfa Systems / Taito - 2003
Shikigami No Shiro II / The Castle of Shikigami II Shikigami No Shiro II / The Castle of Shikigami II
Shikigami No Shiro II / The Castle of Shikigami II Shikigami No Shiro II / The Castle of Shikigami II Shikigami No Shiro II / The Castle of Shikigami II
Flyers : Normal Flyer
Prequel : Shikigami No Shiro / The Castle of Shikigami (2001)
Sequel : Shikigami No Shiro III / The Castle of Shikigami III (2005)
 

Shootout Pool
2002
Shootout Pool
Shootout Pool Shootout Pool
Cabinets : Upright
Sequel : Shootout Pool Prize (2003)
 

Shootout Pool Prize
2003
Shootout Pool Prize
Cabinets : Upright
Prequel : Shootout Pool (2002)
 
Pages:   1   2   3   4   5   6   7  

 

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